16180002 has 12 divisors (see below), whose sum is σ = 35056710. Its totient is φ = 5393328.

The previous prime is 16179991. The next prime is 16180007. The reversal of 16180002 is 20008161.

It can be written as a sum of positive squares in only one way, i.e., 11553201 + 4626801 = 3399^2 + 2151^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 898889 = 16180002 / (1 + 6 + 1 + 8 + 0 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (16180007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449427 + ... + 449462.

Almost surely, 2^16180002 is an apocalyptic number.

16180002 is an abundant number, since it is smaller than the sum of its proper divisors (18876708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16180002 is a wasteful number, since it uses less digits than its factorization.

16180002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898897 (or 898894 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 16180002 is about 4022.4373208293. The cubic root of 16180002 is about 252.9256396421.

Adding to 16180002 its reverse (20008161), we get a palindrome (36188163).

The spelling of 16180002 in words is "sixteen million, one hundred eighty thousand, two".